Messages in this thread |  | | Date | Fri, 05 Oct 2001 23:45:03 +0200 | From | Alessandro Suardi <> | Subject | Re: Wierd /proc/cpuinfo with 2.4.11-pre4 |
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Dan Merillat wrote: > > From dmesg: > CPU: Before vendor init, caps: 000001bf 00000000 00000000, vendor = 0 > Intel Pentium with F0 0F bug - workaround enabled. > Intel old style machine check architecture supported. > Intel old style machine check reporting enabled on CPU#0. > CPU: After vendor init, caps: 000001bf 00000000 00000000 00000000 > CPU: After generic, caps: 000001bf 00000000 00000000 00000000 > CPU: Common caps: 000001bf 00000000 00000000 00000000 > CPU: Intel Pentium 75 - 200 stepping 0b > Checking 'hlt' instruction... OK. > > Looks normal. Let's see /proc/cpuinfo... > > processor : 0
[snip]
> processor : 7 > vendor_id : unknown > cpu family : 0 > model : 0 > model name : unknown > stepping : 0 > cache size : 515 KB > fdiv_bug : no > hlt_bug : yes > f00f_bug : yes > coma_bug : yes > fpu : no > fpu_exception : no > cpuid level : 0 > wp : no > flags : > bogomips : 644464.70 > > Wow! That's pretty impressive, a new kernel build gives me an > additional _7_ CPUs! > > Interesting bits of .config: > > CONFIG_M586TSC=y > CONFIG_X86_MSR=y > CONFIG_X86_CPUID=y > CONFIG_NOHIGHMEM=y > # CONFIG_HIGHMEM4G is not set > # CONFIG_HIGHMEM64G is not set > # CONFIG_MATH_EMULATION is not set > CONFIG_MTRR=y > # CONFIG_SMP is not set > # CONFIG_X86_UP_APIC is not set > # CONFIG_X86_UP_IOAPIC is not set > > Won't compile with UP APIC turned on, as others have noted. > > Aside from /bin/ps getting confused about the system capabilities, it > seems stable.
Same 8-processor incorrect info on my PIII Dell laptop - redirecting '/usr/bin/top' stderr gets this:
[asuardi@dolphin linux]$ cat x fscanf failed on /proc/stat for cpu 1 fscanf failed on /proc/stat for cpu 2 fscanf failed on /proc/stat for cpu 3 fscanf failed on /proc/stat for cpu 4 fscanf failed on /proc/stat for cpu 5 fscanf failed on /proc/stat for cpu 6 fscanf failed on /proc/stat for cpu 7 fscanf failed on /proc/stat for cpu 1
So I'd assume anything touching /proc/cpuinfo is hosed.
--alessandro
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